/*import java.util.Arrays;
import java.util.Scanner;*/
import java.util.*;
class Stu{
    public String name = "wxy";
    int age = 19;

/*    public Stu() {
        this("wxy", 19);
        System.out.println("这是没有参数的构造方法");
    }

    public Stu(String name, int age) {
        this.name = name;
        this.age = age;
        System.out.println("这是有两个参数的构造方法");
    }*/

    public void read(){
        System.out.println(this.name + "在看书");
    }

    public void print(){
        System.out.println("名字： " + this.name + "    年龄：" + this.age);
    }
}

/*public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int day = scanner.nextInt() + 2;
        if (day == 8){
            System.out.println("1");
        }else if (day == 9){
            System.out.println("2");
        }

        System.out.println(day);
    }
}*/

/*public class Main{
    public static void main(String[] args) {
        Stu stu = new Stu();
        stu.print();
    }
}*/



/*public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        short f = scanner.nextShort();

        double c = 5 * (f - 32) / 9.0;

        System.out.println(String.format("%.2f", c));
    }
}*/


public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int[]arr = {3,1,9,5,27};
        Arrays.sort(arr);
    }
}